Using Translation Memory and Concordance Search
As a translator, you don't always have to translate a string from scratch. If the string you're translating is similar to one that was translated in the past, a translation suggestion will appear in the Editor's Suggestions tab. This works because each time a translation is saved, it's added to a database known as Translation Memory (TM for short). Then untranslated strings are compared against translated ones to see if there are similarities between the two.
Understanding Translation Memory suggestions
If a string has a Translation Memory match, it'll appear in the Suggestions tab of the Editor with a percentage next to the suggestion. The percentage shows you how similar the string you're currently translating is to the source string of the suggested translation.
The higher the percentage, the more similar the two source strings are. A 100% match means the two source strings are exactly the same. In such a case, it might be safe to reuse the translation.
For example, let's say you're translating the word "Password" and similar phrases were translated in the past. You might something like this in the Suggestions tab:
The first is a 100% match because it's exactly the same word as the one you're translating. The second is a 66% match – while the source phrase contains the word "password," it's not exactly the same as what you're translating.
Using TM suggestions
To use a TM suggestion:
Find the suggestion you'd like to use and click the Use this icon. The suggestion will be copied into the translation box.
Hit Save to save the translation.
Concordance search lets you search through the Translation Memory for a specific word or phrase and see how it was translated in other places. This is useful when there's no TM suggestion for a string, but you still want to see how something was translated elsewhere.
To use concordance search:
Click the Concordance Search button near the top right of the Editor, or hit the c shortcut on your keyboard.
Type in your search term and hit Enter or click the Search button.
To the right of the search box, you'll see the matching results. The left column shows all the source phrases containing your search term (your search term is highlighted). The right column shows how all those phrases were translated.